PERM

Generator end ring scanner

The Phoenix End Ring Manipulator (PERM) enables 100% scan coverage of the external surface of generator end rings without removing the rotor from the stator.
PERM can be fixed in to position by two operators in less than one hour and is capable of inspecting a large range of modern generator end rings, including those with tapers at one or both ends.

Generator rotor end rings are amongst the most highly stressed and safety critical components in power stations. End ring inspection has traditionally been difficult and has required the removal of the rotor from its stator and then the ring from the rotor. Operators using the PERM systems have reported savings of as much as €200,000 in a single inspection.

The Phoenix manipulator (PERM) enables operators to scan 100 per cent of the rings, including the tapers, with all the components in place. As well as reduced risk of damage, this results in significant cost savings and down time.

Phoenix has over two decades of experience in producing systems of this type and the PERM is used by major operators in power stations throughout the world.